forked from gitea/gitea
384 lines
10 KiB
Go
384 lines
10 KiB
Go
// Copyright 2021 The Gitea Authors. All rights reserved.
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// Use of this source code is governed by a MIT-style
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// license that can be found in the LICENSE file.
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package maven
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import (
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"crypto/md5"
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"crypto/sha1"
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"crypto/sha256"
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"crypto/sha512"
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"encoding/xml"
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"errors"
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"fmt"
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"io"
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"net/http"
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"path/filepath"
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"regexp"
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"strings"
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packages_model "code.gitea.io/gitea/models/packages"
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"code.gitea.io/gitea/modules/context"
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"code.gitea.io/gitea/modules/json"
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"code.gitea.io/gitea/modules/log"
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packages_module "code.gitea.io/gitea/modules/packages"
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maven_module "code.gitea.io/gitea/modules/packages/maven"
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"code.gitea.io/gitea/routers/api/packages/helper"
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packages_service "code.gitea.io/gitea/services/packages"
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)
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const (
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mavenMetadataFile = "maven-metadata.xml"
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extensionMD5 = ".md5"
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extensionSHA1 = ".sha1"
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extensionSHA256 = ".sha256"
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extensionSHA512 = ".sha512"
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)
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var (
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errInvalidParameters = errors.New("request parameters are invalid")
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illegalCharacters = regexp.MustCompile(`[\\/:"<>|?\*]`)
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)
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func apiError(ctx *context.Context, status int, obj interface{}) {
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helper.LogAndProcessError(ctx, status, obj, func(message string) {
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ctx.PlainText(status, message)
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})
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}
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// DownloadPackageFile serves the content of a package
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func DownloadPackageFile(ctx *context.Context) {
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params, err := extractPathParameters(ctx)
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if err != nil {
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apiError(ctx, http.StatusBadRequest, err)
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return
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}
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if params.IsMeta && params.Version == "" {
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serveMavenMetadata(ctx, params)
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} else {
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servePackageFile(ctx, params)
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}
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}
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func serveMavenMetadata(ctx *context.Context, params parameters) {
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// /com/foo/project/maven-metadata.xml[.md5/.sha1/.sha256/.sha512]
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packageName := params.GroupID + "-" + params.ArtifactID
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pvs, err := packages_model.GetVersionsByPackageName(ctx, ctx.Package.Owner.ID, packages_model.TypeMaven, packageName)
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if err != nil {
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apiError(ctx, http.StatusInternalServerError, err)
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return
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}
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if len(pvs) == 0 {
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apiError(ctx, http.StatusNotFound, packages_model.ErrPackageNotExist)
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return
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}
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pds, err := packages_model.GetPackageDescriptors(ctx, pvs)
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if err != nil {
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apiError(ctx, http.StatusInternalServerError, err)
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return
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}
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xmlMetadata, err := xml.Marshal(createMetadataResponse(pds))
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if err != nil {
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apiError(ctx, http.StatusInternalServerError, err)
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return
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}
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xmlMetadataWithHeader := append([]byte(xml.Header), xmlMetadata...)
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ext := strings.ToLower(filepath.Ext(params.Filename))
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if isChecksumExtension(ext) {
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var hash []byte
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switch ext {
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case extensionMD5:
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tmp := md5.Sum(xmlMetadataWithHeader)
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hash = tmp[:]
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case extensionSHA1:
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tmp := sha1.Sum(xmlMetadataWithHeader)
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hash = tmp[:]
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case extensionSHA256:
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tmp := sha256.Sum256(xmlMetadataWithHeader)
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hash = tmp[:]
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case extensionSHA512:
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tmp := sha512.Sum512(xmlMetadataWithHeader)
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hash = tmp[:]
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}
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ctx.PlainText(http.StatusOK, fmt.Sprintf("%x", hash))
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return
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}
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ctx.PlainTextBytes(http.StatusOK, xmlMetadataWithHeader)
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}
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func servePackageFile(ctx *context.Context, params parameters) {
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packageName := params.GroupID + "-" + params.ArtifactID
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pv, err := packages_model.GetVersionByNameAndVersion(ctx, ctx.Package.Owner.ID, packages_model.TypeMaven, packageName, params.Version)
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if err != nil {
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if err == packages_model.ErrPackageNotExist {
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apiError(ctx, http.StatusNotFound, err)
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} else {
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apiError(ctx, http.StatusInternalServerError, err)
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}
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return
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}
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filename := params.Filename
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ext := strings.ToLower(filepath.Ext(filename))
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if isChecksumExtension(ext) {
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filename = filename[:len(filename)-len(ext)]
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}
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pf, err := packages_model.GetFileForVersionByName(ctx, pv.ID, filename, packages_model.EmptyFileKey)
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if err != nil {
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if err == packages_model.ErrPackageFileNotExist {
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apiError(ctx, http.StatusNotFound, err)
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} else {
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apiError(ctx, http.StatusInternalServerError, err)
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}
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return
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}
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pb, err := packages_model.GetBlobByID(ctx, pf.BlobID)
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if err != nil {
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apiError(ctx, http.StatusInternalServerError, err)
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return
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}
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if isChecksumExtension(ext) {
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var hash string
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switch ext {
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case extensionMD5:
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hash = pb.HashMD5
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case extensionSHA1:
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hash = pb.HashSHA1
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case extensionSHA256:
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hash = pb.HashSHA256
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case extensionSHA512:
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hash = pb.HashSHA512
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}
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ctx.PlainText(http.StatusOK, hash)
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return
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}
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s, err := packages_module.NewContentStore().Get(packages_module.BlobHash256Key(pb.HashSHA256))
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if err != nil {
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apiError(ctx, http.StatusInternalServerError, err)
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}
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defer s.Close()
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if pf.IsLead {
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if err := packages_model.IncrementDownloadCounter(ctx, pv.ID); err != nil {
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log.Error("Error incrementing download counter: %v", err)
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}
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}
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ctx.ServeContent(pf.Name, s, pf.CreatedUnix.AsLocalTime())
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}
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// UploadPackageFile adds a file to the package. If the package does not exist, it gets created.
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func UploadPackageFile(ctx *context.Context) {
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params, err := extractPathParameters(ctx)
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if err != nil {
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apiError(ctx, http.StatusBadRequest, err)
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return
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}
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log.Trace("Parameters: %+v", params)
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// Ignore the package index /<name>/maven-metadata.xml
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if params.IsMeta && params.Version == "" {
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ctx.Status(http.StatusOK)
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return
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}
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packageName := params.GroupID + "-" + params.ArtifactID
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buf, err := packages_module.CreateHashedBufferFromReader(ctx.Req.Body, 32*1024*1024)
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if err != nil {
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apiError(ctx, http.StatusInternalServerError, err)
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return
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}
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defer buf.Close()
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pvci := &packages_service.PackageCreationInfo{
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PackageInfo: packages_service.PackageInfo{
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Owner: ctx.Package.Owner,
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PackageType: packages_model.TypeMaven,
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Name: packageName,
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Version: params.Version,
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},
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SemverCompatible: false,
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Creator: ctx.Doer,
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}
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ext := filepath.Ext(params.Filename)
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// Do not upload checksum files but compare the hashes.
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if isChecksumExtension(ext) {
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pv, err := packages_model.GetVersionByNameAndVersion(ctx, pvci.Owner.ID, pvci.PackageType, pvci.Name, pvci.Version)
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if err != nil {
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if err == packages_model.ErrPackageNotExist {
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apiError(ctx, http.StatusNotFound, err)
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return
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}
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apiError(ctx, http.StatusInternalServerError, err)
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return
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}
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pf, err := packages_model.GetFileForVersionByName(ctx, pv.ID, params.Filename[:len(params.Filename)-len(ext)], packages_model.EmptyFileKey)
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if err != nil {
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if err == packages_model.ErrPackageFileNotExist {
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apiError(ctx, http.StatusNotFound, err)
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return
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}
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apiError(ctx, http.StatusInternalServerError, err)
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return
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}
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pb, err := packages_model.GetBlobByID(ctx, pf.BlobID)
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if err != nil {
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apiError(ctx, http.StatusInternalServerError, err)
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return
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}
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hash, err := io.ReadAll(buf)
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if err != nil {
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apiError(ctx, http.StatusInternalServerError, err)
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return
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}
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if (ext == extensionMD5 && pb.HashMD5 != string(hash)) ||
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(ext == extensionSHA1 && pb.HashSHA1 != string(hash)) ||
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(ext == extensionSHA256 && pb.HashSHA256 != string(hash)) ||
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(ext == extensionSHA512 && pb.HashSHA512 != string(hash)) {
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apiError(ctx, http.StatusBadRequest, "hash mismatch")
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return
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}
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ctx.Status(http.StatusOK)
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return
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}
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pfci := &packages_service.PackageFileCreationInfo{
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PackageFileInfo: packages_service.PackageFileInfo{
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Filename: params.Filename,
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},
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Creator: ctx.Doer,
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Data: buf,
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IsLead: false,
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OverwriteExisting: params.IsMeta,
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}
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// If it's the package pom file extract the metadata
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if ext == ".pom" {
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pfci.IsLead = true
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var err error
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pvci.Metadata, err = maven_module.ParsePackageMetaData(buf)
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if err != nil {
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log.Error("Error parsing package metadata: %v", err)
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}
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if pvci.Metadata != nil {
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pv, err := packages_model.GetVersionByNameAndVersion(ctx, pvci.Owner.ID, pvci.PackageType, pvci.Name, pvci.Version)
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if err != nil && err != packages_model.ErrPackageNotExist {
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apiError(ctx, http.StatusInternalServerError, err)
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return
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}
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if pv != nil {
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raw, err := json.Marshal(pvci.Metadata)
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if err != nil {
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apiError(ctx, http.StatusInternalServerError, err)
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return
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}
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pv.MetadataJSON = string(raw)
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if err := packages_model.UpdateVersion(ctx, pv); err != nil {
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apiError(ctx, http.StatusInternalServerError, err)
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return
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}
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}
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}
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if _, err := buf.Seek(0, io.SeekStart); err != nil {
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apiError(ctx, http.StatusInternalServerError, err)
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return
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}
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}
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_, _, err = packages_service.CreatePackageOrAddFileToExisting(
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pvci,
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pfci,
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)
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if err != nil {
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switch err {
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case packages_model.ErrDuplicatePackageFile:
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apiError(ctx, http.StatusBadRequest, err)
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case packages_service.ErrQuotaTotalCount, packages_service.ErrQuotaTypeSize, packages_service.ErrQuotaTotalSize:
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apiError(ctx, http.StatusForbidden, err)
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default:
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apiError(ctx, http.StatusInternalServerError, err)
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}
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return
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}
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ctx.Status(http.StatusCreated)
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}
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func isChecksumExtension(ext string) bool {
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return ext == extensionMD5 || ext == extensionSHA1 || ext == extensionSHA256 || ext == extensionSHA512
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}
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type parameters struct {
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GroupID string
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ArtifactID string
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Version string
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Filename string
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IsMeta bool
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}
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func extractPathParameters(ctx *context.Context) (parameters, error) {
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parts := strings.Split(ctx.Params("*"), "/")
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p := parameters{
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Filename: parts[len(parts)-1],
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}
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p.IsMeta = p.Filename == mavenMetadataFile ||
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p.Filename == mavenMetadataFile+extensionMD5 ||
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p.Filename == mavenMetadataFile+extensionSHA1 ||
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p.Filename == mavenMetadataFile+extensionSHA256 ||
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p.Filename == mavenMetadataFile+extensionSHA512
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parts = parts[:len(parts)-1]
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if len(parts) == 0 {
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return p, errInvalidParameters
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}
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p.Version = parts[len(parts)-1]
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if p.IsMeta && !strings.HasSuffix(p.Version, "-SNAPSHOT") {
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p.Version = ""
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} else {
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parts = parts[:len(parts)-1]
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}
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if illegalCharacters.MatchString(p.Version) {
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return p, errInvalidParameters
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}
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if len(parts) < 2 {
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return p, errInvalidParameters
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}
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p.ArtifactID = parts[len(parts)-1]
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p.GroupID = strings.Join(parts[:len(parts)-1], ".")
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if illegalCharacters.MatchString(p.GroupID) || illegalCharacters.MatchString(p.ArtifactID) {
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return p, errInvalidParameters
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}
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return p, nil
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}
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